NEW308896
Web Inspector: Site Isolation: Page domain getResourceTree across processes 
https://bugs.webkit.org/show_bug.cgi?id=308896
Summary Web Inspector: Site Isolation: Page domain getResourceTree across processes
Blaze Burg
Reported 2026-02-28 11:54:44 PST
Page.getResourceTree must aggregate frame/resource tree data from all WebProcesses. The tree structure is known in UIProcess (WebFrameProxy hierarchy), but resource details (mimeType, content size, etc.) live in individual WebProcesses. Work items: - IPC from ProxyingPageAgent to each WebProcess to collect resource data - Aggregate fragments into complete tree in UIProcess - Handle race conditions if frames navigate during aggregation - Consider hybrid approach: UIProcess builds tree from WebFrameProxy, fills in resource details from WebProcess responses Radar cross-reference: rdar://157031522
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Radar WebKit Bug Importer
Comment 1 2026-03-04 22:05:32 PST
<rdar://problem/171780776>
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